* cloudstack: fix connection by ENV vars and configs overloading
* cloudstack: pep8 cloudstack module_utils
* cloudstack: allow api_url to be set in ini config
* docsite: explain ENV vars support as written in python-cs for ansible
* developing_modules.rst is now in dev_guide, sync changes and delete the old version
* Cleaner RST & formatted code
* Tidyup roadmaps
* Link to repomerge
* Pull in abadger's fixes From https://github.com/ansible/ansible/compare/docs-code-block-fixes?expand=1
* Clean docsite/rst (apart from ROADMAP
